Tobacco flue and heating system



TOBACCO FLUE AND HEATING SYSTEM Filed NOV. 14, 1935 3 vim fies Evin ZZZ.

25 accompanying drawing illustrating an operative with respect to the discharge flue, the air'acembodiment. cordingly being heated and substantially evenly In said drawing:-- distributed throughout the barn or shed, through Figure l is a view in perspective of a tobacco the nipples l9. As the openings 20 are at the 30 barn or shed embodying the present invention, highest point 'within the barn, some of the 30 parts of the barn and flue being broken away to escaping air will be taken into the openings 20, disclose details; and its heat utilized, the air entering the con- Figure 2 is a longitudinal sectional view duit I8 thus in effect being pre-heated. through a portion of a primary or discharge flue, Various changes may be resorted to provided 35 with a portion of a hot air pipe therein; and they fall within the spirit and scope of the inven- 35 50 of the barn and communicating with a vertical mentioned air conduit to the air conduit in the .50

Patented Oct. 5, 1937 2,095,186

UNITED STATES PATENT.OFFICE TOBACCO FLUE AND HEATING SYSTEM Charles Irvin Gill, Wilson, N. 0., assignor of onehalf to A. Boy Moore, Wilson County, N. C.

Application November 14, 1935, Serial No. 49,811

1 Claim. (CI. 34-19) This invention relates to a flue and heating Such conduit l8 has a multiplicity of nipples, as system primarily adapted for the coloring, drying, at l9, leading therefrom through, and fastened and curing of tobacco, although not so limited, air tight in, the wall of the flue i3, so as to disas it may be used for other products, especially charge heated air into the interior of the barn or 5 those needing processing by dry heat. shed Hi. It will thus be realized that the products It is particularly aimed to provide a system of combustion in the flue l3 cannot enter the and means wherein practically a uniform temair conduit H3 or the interior of the barn or perature may be maintained throughout the curshed l0. ing chamber. In existing systems, the heat can- The air for the conduit I8 is taken at the not be properly controlled and distributed evenhighest point within the barn or shed ill, in order 10 ly in the curing chamber, and there is an unnecthat the heat thereof may be utilized, such air essary use of fuel. entering through inlet openings or orifices 20 in a By reason of the present invention, approxihorizontal branch 2| of such air pipe, and which mately one-third of the fuel used in existing communicates with a vertical branch 22, having systems may be saved, and it provides a discharge an L-shaped horizontal branch 23, adjacent the flue for the products of combustion, which flue furnace, and entering the conduit I 8 a short dismay have parts in any desired portion of the tance in advance of the furnace. An induction barn or shed, and within which flue a hot air fan device 24, driven by any suitable means, is pipe is disposed, to receive the air adjacent the provided. A damper or valve 25 is provided in outlet or vent of the barn, and to discharge the the pipe 23 to control or cut off the circulation 20 same at intervals through nipples extending and flow of air, and the fan 24 obviously is under through a discharge or primary flue. suitable control to cease operation when desired. The more specific objects'and advantages will It will be realized that the fan 24 causes air to become apparent from a consideration of the deenter the conduit l8, through the openings 20, scription following taken in connection with the the conduit being at the zone of maximum heat 25 Figure 3 is a cross sectional view taken on the tion. plane of line 3-3 of Figure 1. I claim as my invention:--

Referring specifically to the drawing, wherein In a system of the class described, a curing like reference characters designate like or similar chamber, a furnace in said chamber, a continuous 40 parts, l0 designates a conventional barn or shed discharge flue portion adjacent the base of said 40 of the type in which tobacco or other products chamber, a flue portion leading from the furnace are colored, dried, cured, or processed by dry to the first mentioned flue portion, a discharge heat. Said barn has a ventilator at H. stack leading from the first mentioned portion,

Within the barn a suitable furnace I2 is proan air conduit portion within the first and secvided from which a primary or discharge flue 03 and mentioned flue portions, said chamber hav- 5 leads, to carry the products of combustion from ing a vent means at the top thereof, an air conthe furnace l2 to the atmosphere. Such flue l3 duit having an inlet within the chamber adjacent has a central longitudinal section l4, leading to said vent means, said conduit having an inducbranches l5, extending around the ends and sides tion fan therein, a conduit leading from the last p rt n 01 Stack IE on the exterior of the barn, second mentioned flue portion in front of the preferably T-shaped at its upper end, as at H. furnace, and air discharge nipples leading from Within the flue I3 is an air conduit l8 preferthe air conduit within the first and second menably centrally disposed and of less diameter, the tioned flue portions and extending through the air conduit being at the zone to receive the maxiwalls thereof.

mum heat from the products of combustion. CHARLES IRVIN GILL. 

